Hi Jeffy, Am Montag, 18. September 2017, 09:22:21 CEST schrieb jeffy: > On 09/14/2017 01:24 AM, Rob Herring wrote: > > On Wed, Sep 06, 2017 at 10:50:09AM +0800, Jeffy Chen wrote: > >> diff --git a/Documentation/devicetree/bindings/sound/rt5514.txt b/Documentation/devicetree/bindings/sound/rt5514.txt > >> index 929ca6756b02..841a1159e234 100644 > >> --- a/Documentation/devicetree/bindings/sound/rt5514.txt > >> +++ b/Documentation/devicetree/bindings/sound/rt5514.txt > >> @@ -4,7 +4,7 @@ This device supports I2C only. > > > > SPI support should be added to this document. > ok, will do. > > > >> > >> Required properties: > >> > >> -- compatible : "realtek,rt5514". > >> +- compatible : "realtek,rt5514" or "realtek,rt5514", "realtek,rt5514-i2c". > > > > There's no need for the -spi or -i2c compatibles. This is implied by > > being a child of those controllers. > heiko mentioned i should add it in the binding in: > https://patchwork.kernel.org/patch/9918987/ If you add a new compatible you need to add it to the binding. I think what Rob means is, that both the i2c and spi side can have the _same_ compatible without the -i2c or -spi, as you can check wether they are children of either a spi or i2c controller in the code itself. Heiko -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html